ICSC 1134 - SODIUM BISULFITE 38-40 % AQUEOUS SOLUTION

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SODIUM BISULFITE 38-40 % AQUEOUS SOLUTION

ICSC: 1134
_{April 2006}

Sodium hydrogensulfite solution
Sodium metabisulfite solution

CAS No: 7631-90-5
RTECS No: VZ2000000
UN No: 2693
EC No: 016-064-00-8

NaHO₃S

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.		In case of fire in the surroundings: use appropriate extinguishing media.
EXPLOSION

EXPOSURE
Inhalation		Ventilation.	Fresh air, rest.
Skin		Protective gloves.	Rinse skin with plenty of water or shower.
Eyes		Safety spectacles	First rinse with plenty of water (remove contact lenses if easily possible).
Ingestion	Abdominal pain. Vomiting.	Do not eat, drink, or smoke during work.	Rinse mouth. Give one or two glasses of water to drink. Refer for medical attention.

SPILLAGE DISPOSAL	PACKAGING & LABELLING
Collect leaking liquid in covered plastic containers. Absorb remaining liquid in sand or inert absorbent and remove to safe place.	EU classification Xn Symbol R: 22-31 S: (2-)25-46 Note: B UN classification UN Hazard Class: 8 UN Pack Group: III	Do not transport with food and feedstuffs.

EMERGENCY RESPONSE	SAFE STORAGE
Transport Emergency Card: TEC (R)-80GC1-II+III	Separated from acids and strong oxidants, food and feedstuffs. Well closed.

IMPORTANT DATA

Physical State; Appearance
COLOURLESS TO YELLOW LIQUID, WITH CHARACTERISTIC ODOUR.

Chemical dangers
The substance decomposes on heating and on contact with acids, producing sulfur oxides. Reacts with acids and strong oxidants, causing fire and explosion hazard. The substance is a weak acid. Attacks metal.

Occupational exposure limits
TLV: 5 mg/m³, as TWA; A4 (not classifiable as a human carcinogen); (ACGIH 2005).
MAK not established.

Routes of exposure
The substance can be absorbed into the body by ingestion

Inhalation risk
No indication can be given about the rate in which a harmful concentration of this substance in the air is reached.

Effects of short-term exposure
The substance may cause asthma-like reactions or urticaria in sensitive persons if ingested.

PHYSICAL PROPERTIES	ENVIRONMENTAL DATA
Boiling point: 104°C Melting point: <0°C Relative density (water = 1): 1.34 Solubility in water: (miscible)	This substance may be hazardous in the environment; special attention should be given to water quality.

NOTES

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2006

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Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.

Updated by AS. Approved by GS. Last update: 29.01.2008